This is the air quality map of India, live(aqicn.org). Daytime/office hours, the numbers would be almost 50% high. During winters, it gets worse(in North). 50 is the safe level. None of our cities qualify to have healthy air - Mumbai during monsoon season benefits from strong west winds and hence better. It's not the government, who is hand in glove with the manufacturers but the honorable Supreme Court of India which ordered the sale of only least polluting Euro 6 / BS6 vehicles in this country from april 1, 2020. They now have to give a huge discount to clear existing stock; yet they aren't and are betting on the festival season, Let's see who blinks first.